Home / 143,764.55-198,395.90-83,371.06

Finding the Fourth Proportional to 143,764.55, 198,395.90 and 83,371.06

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Solution

The fourth proportional to 143,764.55, 198,395.90 and 83,371.06 is: 115,052.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,764.55 : 198,395.90 = 83,371.06 : x
  2. Step 2: Convert to fraction form
    143,764.55/198,395.90 = 83,371.06/x
  3. Step 3: Cross multiply
    143,764.55x = 198,395.90 × 83,371.06
  4. Step 4: Simplify right side
    143,764.55x = 16,540,475,230.14
  5. Step 5: Solve for x
    x = 16,540,475,230.14/143,764.55
  6. Step 6: Final answer
    x = 115,052.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.